Forget the tennis. Everyone at the US Open is talking about this $38 sandwich.

Salt Hank's fan-favorite French dip sandwich rivals last year's chicken nuggets-and-caviar meal.Erin McDowell/Business InsiderLast year, the internet was obsessed with the viral chicken-nuggets-and-caviar meal at the US Open.This year, the most buzzed-about food item is much more homed in on comfort food.It's wet, it's salty, and it's the perfect antidote to a menu filled with sushi and small bites.Salt Hank's French dip makes no apologies about being exactly what it is: a drippy, delightful exc